12/27/2018

Art by Alice Tangerini: Trichomanes pedicellatum Desv.

Smithsonian botanists have trained a deep learning model to identify fern genera of specimens on herbarium sheets with an average of 90.5 percent accuracy (see cover story in this issue of The Plant Press). For the genus Trichomanes, the model is 92 percent accurate. Trichomanes pedicellatum is a South American fern found in eastern Venezuela, Guyana, Suriname, and French Guiana. Alice Tangerini drew this illustration for a 1991 paper by David Lellinger (Amer. Fern J. 81(1): 24-36) to highlight the great diversity in frond and pinnae form within T. pedicellatum.